body {  /*  ����*/
    margin-left: 0px;
    margin-top: 0px;
    margin-right: 0px;
    margin-bottom: 0px;
    background-color: #FFFFFF;
    background-attachment: fixed;
    background-image: url(../img/yinghua.jpg);
    background-repeat: repeat-x;
    background-position: center top;

}